Please wait...
Contact Us
Contact
Need assistance? Contact us on below numbers

For Study plan details

10:00 AM to 7:00 PM IST all days.

For Franchisee Enquiry

OR

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this number

93219 24448 / 99871 78554

Mon to Sat - 10 AM to 7 PM

Two vectors have magnitudes 5 and 3 units but unknown directions, the angle between these two vectors is θ in degree such that resultant vector makes maximum angle with vector of 5 unit. Find the value of 10 sin θ.

Asked by jaychandran1967 9th December 2017, 7:27 PM
Answered by Expert
Answer:
begin mathsize 16px style tan alpha equals fraction numerator 3 sinθ over denominator 5 plus 3 cosθ end fraction equals straight f left parenthesis straight theta right parenthesis
diff space space straight f left parenthesis straight theta right parenthesis space space straight w. straight r. straight t. space straight theta space and space equate space to space 0
straight f apostrophe left parenthesis straight theta right parenthesis equals 0
fraction numerator open parentheses 5 plus 3 cosθ close parentheses 3 cosθ plus 3 sinθ open parentheses negative 3 sinθ close parentheses over denominator open parentheses 5 plus 3 cosθ close parentheses squared end fraction equals 0
cos space straight theta equals fraction numerator negative 9 over denominator 15 end fraction.......2 nd space qudrant
sin space straight theta equals 4 over 5 equals
10 space sinθ equals 8
end style
Answered by Expert 16th December 2017, 8:34 AM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer 2/10

Your answer has been posted successfully!
JEE QUESTION ANSWERS

Chat with us on WhatsApp